Subtract 21/28 from 4/98
4/98 - 21/28 is -139/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 28 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 98 × 2 = 196,
4/98 = 4 × 2/98 × 2 = 8/196 - Likewise, for the 2nd fraction, since 28 × 7 = 196,
21/28 = 21 × 7/28 × 7 = 147/196 - Subtract the two like fractions:
8/196 - 147/196 = 8 - 147/196 = -139/196
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